1986 Ford F150 electrical system problems
22 owner complaints filed with NHTSA name the electrical system on the 1986 Ford F150 — 36% of all complaints for this model year.
What owners report
“While driving at any speed vehicle completely shuts down without warning, cause unknown. Dealer has been notified. Please give any further details.*ak”
filed Jan 10, 2002
“Vehicle has experienced 4 modular replacements. Truck would shut off completely, which resulted in steering lock; inoperable. Repairs were from alameda ford, all star fod, winner ford; alameda ford indicated the part that wen into modulator ha to be re-invented as previous part no longer made…”
filed Sep 26, 2001
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
Subject on a wire harness terminal repair kit available for repairing electrical wiring harnesses. *tt
99222 · Service Bulletin/Repair Instructions · issued Oct 18, 1999Ford motor company has released a new electrical grease ( f8az - 19g208-aa ) to reduce the possibility of moisture corrosion at the terminals. *yc
98246 · Service Bulletin/Repair Instructions · issued Dec 7, 1998
Electrical System problems in other F150 years
| Year | Reports | Share |
|---|---|---|
| 2025 F150 | 22 | 22% |
| 2024 F150 | 38 | 21% |
| 2023 F150 | 80 | 20% |
| 2022 F150 | 122 | 21% |
| 2021 F150 | 125 | 13% |
| 2020 F150 | 82 | 12% |
| 2019 F150 | 98 | 8% |
| 2018 F150 | 169 | 8% |
| 2017 F150 | 126 | 9% |
| 2016 F150 | 182 | 9% |
| 2015 F150 | 167 | 10% |
| 2014 F150 | 160 | 11% |
Other reported problem areas on the 1986 Ford F150
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.